Circuit protection film

Details Circuit protection film Circuit protection film

1998-01-15

1999-03-23

Acquah, Samuel A.

Stock material or miscellaneous articles

Composite

Of polyimide

528271, 526 72, 526 75, 5262383, 526285, 5263171, 526318, 4284763, 4284769, 428483, 428349, B32B 2700

Patent

active

058857176

ABSTRACT:
A composite tack-free film having a film substrate with opposing surfaces, bearing on at least one of said surfaces a highly crosslinked, film-forming acrylate composition containing from about 25 to about 78 of at least one lower alkyl (meth)acrylate ester and from about 10 to about 60 percent vinyl acetate and at least about 1 percent of a polar monomer, wherein the acrylate composition is capable of attaching temporarily to polyimide film surface to provide a substantially air-tight seal and being cleanly removable from said polyimide film surface leaving no visible residue, even after being subjected to elevated temperatures.

REFERENCES:
patent: 4066820 (1978-01-01), Kelly et al.
patent: 4737559 (1988-04-01), Kellen et al.
patent: 4985488 (1991-01-01), Landin

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